Patentable/Patents/US-10727830
US-10727830

X-ray tube power supply inverter switch

PublishedJuly 28, 2020
Assigneenot available in USPTO data we have
Inventorsnot available in USPTO data we have
Technical Abstract

A switch of an inverter of an X-ray tube power supply including: at least four MOSFETs aligned in parallel; a plurality of intermediate radiators positioned between the MOSFETs in order to separate two successive MOSFETs; at least four snubbers positioned in parallel, each being positioned beside a MOSFET; a control unit of said switch positioned so that the succession of MOSFETs is positioned between the alignment of snubbers and the control unit.

Patent Claims
9 claims

Legal claims defining the scope of protection, as filed with the USPTO.

1

1. A switch of an inverter of an X-ray tube power supply, comprising: a single printed circuit on which is attached: at least two MOSFETs aligned in parallel; at least one intermediate radiator positioned between the at least two MOSFETs in order to separate two successive MOSFETs; at least two snubbers positioned in parallel, each being positioned adjacent a respective one of the at least two MOSFETs; a control unit of said switch positioned so that a succession of MOSFETs is positioned between the alignment of the at least two snubbers and the control unit; and, two extreme radiators positioned for sandwiching the at least one intermediate radiator, the at least two snubbers, the control unit and the at least two MOSFETs, wherein the at least two snubbers overlap the at least one intermediate radiator within a space between to the two extreme radiators.

2

2. The switch according to claim 1 , wherein the at least one intermediate radiator comprises a first portion separating the at least two MOSFETs pairwise and a second portion extending and protruding from the first portion, the second portion being laid out so as to be positioned above the alignment of the at least two snubbers.

3

3. An inverter of a power supply of an X-ray tube comprising a plurality of switches according to claim 1 .

4

4. The switch according to claim 1 , further comprising a damping device positioned on a surface of at least one of the at least one intermediate radiator or a surface of at least one of the two extreme radiators so as to maintain the at least two MOSFETs in contact with the respective intermediate or extreme radiators.

5

5. The switch according to claim 4 , wherein the damping device is in silicone or is a metal strip.

6

6. The switch according to claim 1 , further comprising two screws connecting together the at least one intermediate radiator and the two extreme radiators, one of the two screws crossing a first portion of the at least one intermediate radiator and the other of the two screws crossing a second portion of the at least one intermediate radiator.

7

7. The switch according to claim 6 , wherein the screw crossing the first portion is positioned above the at least two snubbers relative to a surface of the printed circuit.

8

8. The switch according to claim 1 , wherein the two extreme radiators and the at least one intermediate radiator are of the same thicknesses.

9

9. The switch according to claim 1 , wherein each of the two extreme radiators comprises two attachment orifices so as to attach said two extreme radiators onto a printed circuit.

Classification Codes (CPC)

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Patent Metadata

Filing Date

September 10, 2014

Publication Date

July 28, 2020

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Cite as: Patentable. “X-ray tube power supply inverter switch” (US-10727830). https://patentable.app/patents/US-10727830

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